Ok Ok 6.0 stock pcm ??? for pcm guys Help

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Nov 14, 2007 | 02:57 PM

#11

thunder550

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Quote:

Originally Posted by Mangled03gmc

THUNDER550
Isnt the 4.8 pcm, different as far as fueling tables exc then the 6.0 pcm. If they are then wouldn't a cammed 6.0 run really bad, all I have on the 4.8 tune is the HYPERJUNK. I was wanting to know if I could use a returnless fuel system pcm on a truck with a return system. I know that a 6.0 pcm will not run that great on a cammed 6.0, but since the 6.0 pcm is for a (returnless fuel sys) will it really run bad I am keeping the return system on the truck.. thanks

John

Your sig says 6.0, I was assuming that you were swapping from one 6.0 to another. I personally would use your original PCM and have a 6.0 tune put in it. How long are you planning on driving it before you have it tuned?

Nov 14, 2007 | 03:08 PM

#12

Mangled03gmc

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From: In a van DOWN BY THE RIVER

Quote:

Originally Posted by thunder550

Nope still have the 4.8 with the hyperjunk. Not too long hopefully, a month or so, or at least I get money to get a tune for it. I need to get it off the stand and am tired of looking at it, the tune aspect is really all that is holding me up at this point.. So I can get by if it will run with out a tune of verter..

Thanks John

Nov 14, 2007 | 04:29 PM

#13

thunder550

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From: Phoenix, AZ

Quote:

Originally Posted by Mangled03gmc

What cam are you running in the new 6.0? What injectors?

Nov 14, 2007 | 06:00 PM

#14

Mangled03gmc

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From: In a van DOWN BY THE RIVER

Quote:

Originally Posted by thunder550

What cam are you running in the new 6.0? What injectors?

The cam is 581 581 224 on a 112. Also I have the heads milled .20

Thanks John

Nov 14, 2007 | 06:02 PM

#15

thunder550

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Quote:

Originally Posted by Mangled03gmc

The cam is 581 581 224 on a 112. Also I have the heads milled .20

Thanks John

Are you using the same injectors from the old engine?

Nov 14, 2007 | 06:16 PM

#16

Mangled03gmc

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From: In a van DOWN BY THE RIVER

Quote:

Originally Posted by thunder550

Are you using the same injectors from the old engine?

Yes for a short period, but I have a set of 44's lined up. I had a set but sold them mfers, now kicking myself in the ***. If it will run I can drive like a normal human till i get **** in the right direction. Also the stock verter for now, If it will move I will drive it, I am getting tired of looking at this hog in my shop lol. Also thanks fer the help brotha
John

Nov 14, 2007 | 07:53 PM

#17

GMC_DUDE

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From: Western WA

Another factor to consider is that the 2005 ECU will have a graduated IFR table to account for the returnless fuel system. This should not cause any serious problems, but should be replaced with a constant table at the next tune.